#! @PATH_PERL@ -w die "perl5 needed\n" unless ($] > 5); use Getopt::Std; $opt_f = 0; # 'Hard' failure if 'state' is unknown $opt_n = 1000; # How many tries before we give up? (10 min+) $opt_s = 6; # Seconds to sleep between tries (6s = 10/min) $opt_v = 0; # Be verbose? getopts('fn:s:v'); $cmd = 'ntpq -c "rv 0 state"'; $| = 1; # Autoflush output. print "Waiting for ntpd to synchronize... " if ($opt_v); for ($i = 0; $i < $opt_n; ++$i) { open(Q, $cmd." 2>&1 |") || die "Can't start ntpq: $!"; while() { if (/^state=4/) { print "\bOK!\n" if ($opt_v); exit 0; } if (/request variable was unknown/) { print "\bCan't tell!\nPerhaps you are running an old version of ntpd.\n" if ($opt_v); exit $opt_f; } if (/Connection refused/) { print "\bntpd is not running!\n" if ($opt_v); exit 1; } } close(Q); print "\b".substr("*+:.", $i % 4, 1) if ($opt_v); sleep($opt_s); } print "\bNo!\nntpd did not synchronize.\n" if ($opt_v); exit 1;